summon /ˈsʌmən/ vt. 1.召唤：The king summoned all his ambassadors. 国王召回了他所有的大使。 2.召集：A meeting was summoned immediately. 立刻召集了一个会议。They summoned men to defend their country. 他们召集男人来保卫国家。 3.传讯，传唤：be summoned as a witness 被传唤作证 summon (up) 鼓起(勇气)，振作(精神)；唤起：summon (up) one’s courage for a task 鼓起勇气干工作 He summoned (up) all his strength to jump the stream. 他使出全身的力气跳过小溪。